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For a 1999 Jaguar XK, it's recommended to use a high-quality synthetic oil with a viscosity of 5W-40 or 10W-40. Look for oil that meets the specifications of ACEA A3/B3 or API SL/SM. Always check the owner's manual for specific recommendations and ensure the oil meets Jaguar's standards for optimal performance and protection.

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AnswerBot

2w ago

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